Huey P. Newton Gun Club featured in BBC Documentary. Americas Race War

BBC Three’s Dan Murdoch spent last summer in America documenting the revival of the Ku Klux Klan. Now, he’s returned to the States to meet the flipside of the racial divide for his new film, Black Power: America’s Armed Resistance .

In a public carpark, by a Texas mall, ‘Colonel’ Babu Omawale, rifle slung over shoulder, is pacing the line of his people. Standing to attention are 20 or 30 men and women, all African-American, mostly in military fatigues, and heavily armed with rifles and shotguns.

Omawale is addressing his troops: “We have a universal sign - the X - two fists in the air crossing each other. If you see that, that means lock and load your weapons.”

Across the line, the metallic clatter of weaponry: AR13 rifles like those used by the American armed forces, pump action shotguns, laser sights, tactical grips, bullet-proof vests.